First term, 2017–2020 In the Patterson stood for New Zealand First in the electorate and was placed 7 on the New Zealand First party list. He was the only South-Island based MP in his party. In his first term, Patterson served as a member on both the education and workforce, and primary production committees. He was also the New Zealand First spokesperson for agriculture and primary industries, biosecurity, Christchurch earthquake recovery, Crown minerals, customs, food safety, intellectual property, and land information. As agriculture spokesperson, Patterson was critical of the proposed sale of
Westland Milk to the China-based
Yili Group. The purchase went ahead in 2023. He criticised Air New Zealand for using plant-based meats on some of its flights and congratulated Virgin Australia on announcing it was searching for a New Zealand-based red meat supplier for its trans-Tasman flights. Patterson sponsored three bills in his first parliamentary term, the New Zealand Superannuation and Retirement Income (Fair Residency) Amendment Bill, the Gore District Council (Otama Rural Water Supply) Bill, and the Farm Debt Mediation Bill. Patterson's superannuation bill was introduced in October 2018; it proposed doubling the minimum residency qualification for New Zealand Superannuation from 10 years to 20 years after age 20. The bill had not been reported out of select committee when Patterson was defeated in the 2020 general election; the bill transferred to National MP
Andrew Bayly and passed into law on 14 November 2021. In a speech on the bill, Patterson said the intent was to limit recent immigrants and New Zealanders who had spent the majority of their lives overseas from claiming New Zealand superannuation. The Otama Rural Water Supply bill, on behalf of Gore District Council, transferred the ownership of the rural water supply scheme in
Otama, Southland from the council to a private company. It passed in May 2019. The Farm Debt Mediation Bill was introduced in May 2018 and progressed to select committee, but was withdrawn in favour of a similar bill backed by the Government that was enacted in 2019. In conscience votes on legislation, Patterson voted in favour of the
End of Life Choice Bill and supported
Jenny Marcroft's amendment to require the bill's passage to be contingent on
a nationwide referendum. He voted in favour of the
Abortion Legislation Bill at its first and second readings, but removed his support for the bill at its third reading after Parliament rejected a bid for that bill to also be decided by referendum. Patterson was announced as the New Zealand First candidate for the newly formed
Taieri electorate for the 2020 general election and was ranked at 7 on the New Zealand First party list. During the
2020 general election held on 17 October, Patterson finished fourth in Taieri. He and his fellow New Zealand First MPs lost their seats after the party's vote dropped to 2.7%, below the five percent threshold needed to remain in Parliament.
Second term, 2023–present Patterson was ranked fourth on New Zealand First's party list for the
2023 general election and re-contested the Taieri electorate. Patterson finished fourth in Taieri, gaining 3,069 votes. New Zealand First reentered Parliament, with 6.08% of the popular vote and eight seats; Patterson was re-elected as a list MP. He said he was motivated to return to Parliament in protest of the
Labour Government's environment and agriculture policies. Following the formation of the
National-led coalition government, Patterson was appointed
Minister for Rural Communities and Associate Minister of Agriculture in late November 2023. He was additionally appointed Associate Minister for Regional Development in January 2024. Patterson has delegated responsibility for the wool industry. He launched the government's "woolshed roadshow" in 2024. In 2025, he announced that government buildings would be required to use wool products, rather than synthetic fibres, in construction and refurbishment. Due to a pecuniary interest and potential conflict, Patterson stood aside from decisions related to
Emissions Trading Scheme (ETS) settings, but not before taking part in ETS decisions in May 2024. As Associate Minister of Regional Development, Patterson announced on 7 April 2026 that the Government would loan NZ$18.13 million from the Regional Infrastructure Fund to support pre-construction work for the
Tukituki Water Restoration Project. The proposed 104 million cubic square dam is intended to support agricultural and horticultural production in the
Hawke's Bay region. In mid-April 2026, Patterson visited
South Dunedin's Surrey Street and met with members of the Surrey Street Flood Action Group including convener Lynne Newell, Julian Doorey and Neil Johnstone. He described the
Dunedin City Council's flood prevention work in the areas as "too little, too late" and proposed the use of funds from the Government's Regional Development Fund for flood mitigation work including the redevelopment of the former
Forbury Park Raceway. Patterson also met with
Mayor of Dunedin Sophie Barker and other DCC councillors to discuss government funding for flood prevention in Dunedin. Barker and DCC councillor Brent Weatherall defended the Council's flood prevention work in South Dunedin while emphasising the need for more central government support. ==References==